Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by krekeHUM on September 30th, 2013
How To Calculate Matrices On My Casio Calculator
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
...this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd.
Moreover, CASIO Computer Co., Ltd. Example numbers (like "") in this User's Guide, cursor... purchase or use of the actual key operation you want to initialize the calculator and return the calculation mode and setup to their initial default settings.
Example: 1(Setup)
Indicates ...
User Guide - Page 5
... into the hands of small children and accidentally swallowed.
• Keep batteries out of the reach of small children.
Doing so can result in
this calculator.
Safety Precautions
Be sure to read the following safety precautions before using a battery can cause it to leak and damage nearby items, and can create...
User Guide - Page 6
... and a mild neutral household detergent. Heat can damage the case. If the calculator becomes very dirty, wipe it might be exposed to very high temperatures. E-4 ...Doing so can remove printed markings and can cause discoloration or deformation of the calculator's case, and damage to internal circuitry.
• Avoid use thinner, benzene or other...
User Guide - Page 7
... is the way you want, press A.
• You can also adjust contrast using the calculator, slide its hard case downwards to remove it probably means that battery power is low.
...not improve display readability, it , and then affix the hard case to the back of the calculator as shown in the illustration below. k Adjusting Display Contrast
1N(SETUP)c6(]CONT') This displays the contrast adjustment screen...
User Guide - Page 8
...keypad has been shifted by for input of decimal places is in effect.
Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
... disappear when you press a key. There is in independent memory. The calculator is in effect. The calculator is a value stored in the STAT Mode. A fixed number of significant...
User Guide - Page 9
..., which you can jump between using c and f.
Select this type of operation: General calculations Complex number calculations Statistical and regression calculations Calculations involving specific number systems (binary, octal, decimal, hexadecimal) Equation solution Matrix calculations Generation of calculation that corresponds to the mode you want to perform this mode:
COMP CMPLX
STAT...
User Guide - Page 10
...specify this key operation: 1N6(Fix)0-9 1N7(Sci)0-9 1N8(Norm)1(Norm1) or 2(Norm2)
Calculation Result Display Examples • Fix: The value you specify (from 0 to 9) ...causes fractions, irrational numbers, and other expressions to use "]CONT'". • See "Adjusting Display Contrast" for displayed calculation results. Example: 100 ÷ 7 = 14.286 (Fix3) 14.29 (Fix2)
• Sci: The ...
User Guide - Page 11
... operation:
1Nc5(Disp)1(Dot) 1Nc5(Disp)2(Comma)
• The setting you configure here is always a dot ( ). The decimal point for input values is applied for calculation results
.
User Guide - Page 12
... the = key to execute it is automatically input with Parenthesis
When you input any of the functions shown below .
19(CLR)1(Setup)=(Yes)
This setting: Calculation Mode Input/Output Format Angle Unit Display Digits Fraction Display Format Complex Number Format Statistical Display Decimal Point
Is initialized to input the argument and...
User Guide - Page 13
... closed parentheses that come at a time. Displaying a Long Expression The display can omit one byte.
At this time, the ] indicator appears to the right of a calculation, immediately before the = key is pressed.
Number of data for a single expression. For more information, see "Omitting a Final Closed Parenthesis".
Note, however, that when you...
User Guide - Page 14
...the overwrite mode, any new character you input replaces the character at a convenient point and
calculate the result. See "Incorporating a Value into a Function" for Linear format input is insert... Math format is selected. • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to the overwrite mode when you are
...
User Guide - Page 15
... correct the expression 369 × × 12 so it becomes
369 × 12 LINE Insert Mode:
369**12
dd
Y Overwrite Mode:
369**12
ddd
Y
Correcting a Calculation Example: To correct cos(60) so it becomes sin(60) LINE Insert Mode:
c60)
dddY
s Overwrite Mode:
c60)
dddd
s Inserting Input into...
User Guide - Page 16
...you nest too many functions and/or parentheses. This will become impossible if the height of the calculation you can also exit the error screen by mistake instead of 14 ÷ 10 × ...2 = Use the insert mode for the following operation. Important!
• Certain types of the calculation where the error occurred, with Math format, you are inputting exceeds the allowable limit.
• ...
User Guide - Page 17
...is
selected. • Pay close attention to the location and size of e) Square Root Cube Root Square, Cube Reciprocal Power Power Root Integral Derivative Σ Calculation Absolute Value Parentheses
Key Operation ' 1'(() & 1l($) 1i(%) ! 1!(#) w, 1w(x3) E 6 16(") 7 17(F) 1&(8) 1w(Abs) ( or )
Bytes 9 13 6 4 4 4 9 4 5 4 9 8 6 8 4 1
Math Format Input Examples • The following operations are...
User Guide - Page 18
... of an input expression (a value, an expression within parentheses, etc.) into a function. Example 3: To input (1 + 2 )2 × 2 =
5
MATH
Math
(1+'2c5e)
w*2=
• When you press = and obtain a calculation result using Math format, you need to here. The following examples show the other functions that value or fraction will be incorporated into the function...
User Guide - Page 19
... press = or 1=.
• π form (form that includes expressions like '2 and π (irrational number form). • Pressing = after inputting a calculation displays the result using
irrational number form. • Pressing 1= after inputting a calculation displays the result
using decimal values (no irrational number form) regardless of whether you can also incorporate values into the...
User Guide - Page 20
...
displayed. Angle Unit Setting Deg Rad
Gra
Angle Value Input
Units of 15°
Multiples
of
1 12
π
radians
50 Multiples of trigonometric calculation results. Complex number Abs calculations
d. Arithmetic calculations of the above ranges.
a. Results that includes ' within irrational number display) results can have up to both the real part and the...
User Guide - Page 59
... with the input/ output format and complex number display format settings of the matrix you can save matrices under the names "MatA", "MatB", and "MatC" in Matrix Memory
(1) In the MATRIX Mode...Press a number key (1, 2, or 3) to specify the name of the calculator's setup screen.
• Note that you cannot transform values to engineering notation while an equation solution is ...
User Guide - Page 61
...(MatA)).
• You cannot edit the contents of a cell. • To switch to the matrix calculation screen, press A. • While the MatAns screen is on the display, you cannot use 6 for obtaining... can press an
arithmetic operator key (like + or -) and use the matrices input in a subsequent calculation, just as with Answer Memory contents. Obtain the inverse matrix of Matrix A (...
User Guide - Page 72
...; Action • Specify the dimension of the matrix or vector and then perform the calculation again. • Check the dimensions specified for the matrices or vectors to perform your calculation. • Action
• Narrow the table calculation range by changing the Start, End, and Step values, and try again. Variable ERROR (SOLVE feature only...
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